Home / 83,144.97-124,639.70-30,540.33

Finding the Fourth Proportional to 83,144.97, 124,639.70 and 30,540.33

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Solution

The fourth proportional to 83,144.97, 124,639.70 and 30,540.33 is: 45,781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,144.97 : 124,639.70 = 30,540.33 : x
  2. Step 2: Convert to fraction form
    83,144.97/124,639.70 = 30,540.33/x
  3. Step 3: Cross multiply
    83,144.97x = 124,639.70 × 30,540.33
  4. Step 4: Simplify right side
    83,144.97x = 3,806,537,416.40
  5. Step 5: Solve for x
    x = 3,806,537,416.40/83,144.97
  6. Step 6: Final answer
    x = 45,781.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.